As a tournament director and a coach, I selected the ref I know that typically have good performance.
I also chosen to not hire a couple due to past experiences, not only with me but from watching on the side for years and years.
With some refs they run in a group and some travel together so you get some if you want to or not.
Kyle I have never expected refs to get it right 100% of the time. I have been on that side also in several other sports.
It is the one that consistently blows it and always has conflict. That is why there is a head ref and a tournament director. They each live and learn by who they hire, and like it was said earlier when those that don't get hired will slowly get the hint.